[v1,-,1/5] DaVinci - restructuring code to support vpif capture driver

Message ID	1250283702-5582-1-git-send-email-m-karicheri2@ti.com (mailing list archive)
State	RFC
Headers	show Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n7EL1p0F028382 for <patchwork-media@patchwork.kernel.org>; Fri, 14 Aug 2009 21:01:51 GMT From: m-karicheri2@ti.com To: linux-media@vger.kernel.org Cc: davinci-linux-open-source@linux.davincidsp.com, khilman@deeprootsystems.com, hverkuil@xs4all.nl, Muralidharan Karicheri <m-karicheri2@ti.com> Subject: [PATCH v1 - 1/5] DaVinci - restructuring code to support vpif capture driver Date: Fri, 14 Aug 2009 17:01:41 -0400 Message-Id: <1250283702-5582-1-git-send-email-m-karicheri2@ti.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk

diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c index 8c88fd0..c8c65d8 100644 --- a/arch/arm/mach-davinci/board-dm646x-evm.c +++ b/arch/arm/mach-davinci/board-dm646x-evm.c @@ -33,7 +33,7 @@ #include <linux/i2c/at24.h> #include <linux/i2c/pcf857x.h> #include <linux/etherdevice.h> - +#include <media/tvp514x.h> #include <asm/setup.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -63,8 +63,8 @@ #define DM646X_EVM_PHY_MASK (0x2) #define DM646X_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */ -#define VIDCLKCTL_OFFSET (0x38) -#define VSCLKDIS_OFFSET (0x6c) +#define VIDCLKCTL_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x38) +#define VSCLKDIS_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x6c) #define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8)) #define VCH2CLK_SYSCLK8 (BIT(9)) @@ -75,6 +75,18 @@ #define VIDCH2CLK (BIT(10)) #define VIDCH3CLK (BIT(11)) +#define VIDCH1CLK (BIT(4)) +#define TVP7002_INPUT (BIT(4)) +#define TVP5147_INPUT (~BIT(4)) +#define VPIF_INPUT_ONE_CHANNEL (BIT(5)) +#define VPIF_INPUT_TWO_CHANNEL (~BIT(5)) +#define TVP5147_CH0 "tvp514x-0" +#define TVP5147_CH1 "tvp514x-1" + +static void __iomem *vpif_vidclkctl_reg; +static void __iomem *vpif_vsclkdis_reg; +/* spin lock for updating above registers */ +static spinlock_t vpif_reg_lock; static struct davinci_uart_config uart_config __initdata = { .enabled_uarts = (1 << 0), @@ -348,7 +360,7 @@ static struct i2c_board_info __initdata i2c_info[] = { I2C_BOARD_INFO("cpld_reg0", 0x3a), }, { - I2C_BOARD_INFO("cpld_video", 0x3B), + I2C_BOARD_INFO("cpld_video", 0x3b), }, }; @@ -359,18 +371,20 @@ static struct davinci_i2c_platform_data i2c_pdata = { static int set_vpif_clock(int mux_mode, int hd) { + unsigned long flags; + unsigned int value; int val = 0; int err = 0; - unsigned int value; - void __iomem *base = IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE); - if (!cpld_client) + if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg || !cpld_client) return -ENXIO; /* disable the clock */ - value = __raw_readl(base + VSCLKDIS_OFFSET); + spin_lock_irqsave(&vpif_reg_lock, flags); + value = __raw_readl(vpif_vsclkdis_reg); value |= (VIDCH3CLK | VIDCH2CLK); - __raw_writel(value, base + VSCLKDIS_OFFSET); + __raw_writel(value, vpif_vsclkdis_reg); + spin_unlock_irqrestore(&vpif_reg_lock, flags); val = i2c_smbus_read_byte(cpld_client); if (val < 0) @@ -385,7 +399,7 @@ static int set_vpif_clock(int mux_mode, int hd) if (err) return err; - value = __raw_readl(base + VIDCLKCTL_OFFSET); + value = __raw_readl(vpif_vidclkctl_reg); value &= ~(VCH2CLK_MASK); value &= ~(VCH3CLK_MASK); @@ -394,24 +408,30 @@ static int set_vpif_clock(int mux_mode, int hd) else value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK); - __raw_writel(value, base + VIDCLKCTL_OFFSET); + __raw_writel(value, vpif_vidclkctl_reg); /* enable the clock */ - value = __raw_readl(base + VSCLKDIS_OFFSET); + spin_lock_irqsave(&vpif_reg_lock, flags); + value = __raw_readl(vpif_vsclkdis_reg); value &= ~(VIDCH3CLK | VIDCH2CLK); - __raw_writel(value, base + VSCLKDIS_OFFSET); + __raw_writel(value, vpif_vsclkdis_reg); + spin_unlock_irqrestore(&vpif_reg_lock, flags); return 0; } -static const struct vpif_subdev_info dm646x_vpif_subdev[] = { +static struct vpif_subdev_info dm646x_vpif_subdev[] = { { - .addr = 0x2A, .name = "adv7343", + .board_info = { + I2C_BOARD_INFO("adv7343", 0x2a), + }, }, { - .addr = 0x2C, .name = "ths7303", + .board_info = { + I2C_BOARD_INFO("ths7303", 0x2c), + }, }, }; @@ -421,7 +441,7 @@ static const char *output[] = { "S-Video", }; -static struct vpif_config dm646x_vpif_config = { +static struct vpif_display_config dm646x_vpif_display_config = { .set_clock = set_vpif_clock, .subdevinfo = dm646x_vpif_subdev, .subdev_count = ARRAY_SIZE(dm646x_vpif_subdev), @@ -430,6 +450,177 @@ static struct vpif_config dm646x_vpif_config = { .card_name = "DM646x EVM", }; +/** + * setup_vpif_input_path() + * @channel: channel id (0 - CH0, 1 - CH1) + * @sub_dev_name: ptr sub device name + * + * This will set vpif input to capture data from tvp514x or + * tvp7002. + */ +static int setup_vpif_input_path(int channel, const char *sub_dev_name) +{ + int err = 0; + int val; + + /* for channel 1, we don't do anything */ + if (channel != 0) + return 0; + + if (!cpld_client) + return -ENXIO; + + val = i2c_smbus_read_byte(cpld_client); + if (val < 0) + return val; + + if (!strcmp(sub_dev_name, TVP5147_CH0) || + !strcmp(sub_dev_name, TVP5147_CH1)) + val &= TVP5147_INPUT; + else + val |= TVP7002_INPUT; + + err = i2c_smbus_write_byte(cpld_client, val); + if (err) + return err; + return 0; +} + +/** + * setup_vpif_input_channel_mode() + * @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel + * + * This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147) + */ +static int setup_vpif_input_channel_mode(int mux_mode) +{ + unsigned long flags; + int err = 0; + int val; + u32 value; + + if (!vpif_vsclkdis_reg || !cpld_client) + return -ENXIO; + + val = i2c_smbus_read_byte(cpld_client); + if (val < 0) + return val; + + spin_lock_irqsave(&vpif_reg_lock, flags); + value = __raw_readl(vpif_vsclkdis_reg); + if (mux_mode) { + val &= VPIF_INPUT_TWO_CHANNEL; + value |= VIDCH1CLK; + } else { + val |= VPIF_INPUT_ONE_CHANNEL; + value &= ~VIDCH1CLK; + } + __raw_writel(value, vpif_vsclkdis_reg); + spin_unlock_irqrestore(&vpif_reg_lock, flags); + + err = i2c_smbus_write_byte(cpld_client, val); + if (err) + return err; + + return 0; +} + +static struct tvp514x_platform_data tvp5146_pdata = { + .clk_polarity = 0, + .hs_polarity = 1, + .vs_polarity = 1 +}; + +#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL) + +static struct vpif_subdev_info vpif_capture_sdev_info[] = { + { + .name = TVP5147_CH0, + .board_info = { + I2C_BOARD_INFO("tvp5146", 0x5d), + .platform_data = &tvp5146_pdata, + }, + .input = INPUT_CVBS_VI2B, + .output = OUTPUT_10BIT_422_EMBEDDED_SYNC, + .can_route = 1, + .vpif_if = { + .if_type = VPIF_IF_BT656, + .hd_pol = 1, + .vd_pol = 1, + .fid_pol = 0, + }, + }, + { + .name = TVP5147_CH1, + .board_info = { + I2C_BOARD_INFO("tvp5146", 0x5c), + .platform_data = &tvp5146_pdata, + }, + .input = INPUT_SVIDEO_VI2C_VI1C, + .output = OUTPUT_10BIT_422_EMBEDDED_SYNC, + .can_route = 1, + .vpif_if = { + .if_type = VPIF_IF_BT656, + .hd_pol = 1, + .vd_pol = 1, + .fid_pol = 0, + }, + }, +}; + +static const struct vpif_input dm6467_ch0_inputs[] = { + { + .input = { + .index = 0, + .name = "Composite", + .type = V4L2_INPUT_TYPE_CAMERA, + .std = TVP514X_STD_ALL, + }, + .subdev_name = TVP5147_CH0, + }, +}; + +static const struct vpif_input dm6467_ch1_inputs[] = { + { + .input = { + .index = 0, + .name = "S-Video", + .type = V4L2_INPUT_TYPE_CAMERA, + .std = TVP514X_STD_ALL, + }, + .subdev_name = TVP5147_CH1, + }, +}; + +static struct vpif_capture_config dm646x_vpif_capture_cfg = { + .setup_input_path = setup_vpif_input_path, + .setup_input_channel_mode = setup_vpif_input_channel_mode, + .subdev_info = vpif_capture_sdev_info, + .subdev_count = ARRAY_SIZE(vpif_capture_sdev_info), + .chan_config[0] = { + .inputs = dm6467_ch0_inputs, + .input_count = ARRAY_SIZE(dm6467_ch0_inputs), + }, + .chan_config[1] = { + .inputs = dm6467_ch1_inputs, + .input_count = ARRAY_SIZE(dm6467_ch1_inputs), + }, +}; + +static void __init evm_init_video(void) +{ + vpif_vidclkctl_reg = ioremap(VIDCLKCTL_OFFSET, 4); + vpif_vsclkdis_reg = ioremap(VSCLKDIS_OFFSET, 4); + if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg) { + pr_err("Can't map VPIF VIDCLKCTL or VSCLKDIS registers\n"); + return; + } + spin_lock_init(&vpif_reg_lock); + + dm646x_setup_vpif(&dm646x_vpif_display_config, + &dm646x_vpif_capture_cfg); +} + static void __init evm_init_i2c(void) { davinci_init_i2c(&i2c_pdata); @@ -457,7 +648,7 @@ static __init void evm_init(void) soc_info->emac_pdata->phy_mask = DM646X_EVM_PHY_MASK; soc_info->emac_pdata->mdio_max_freq = DM646X_EVM_MDIO_FREQUENCY; - dm646x_setup_vpif(&dm646x_vpif_config); + evm_init_video(); } static __init void davinci_dm646x_evm_irq_init(void) diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index a9b20e5..0976049 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -700,9 +700,23 @@ static u64 vpif_dma_mask = DMA_BIT_MASK(32); static struct resource vpif_resource[] = { { .start = DAVINCI_VPIF_BASE, - .end = DAVINCI_VPIF_BASE + 0x03fff, + .end = DAVINCI_VPIF_BASE + 0x03ff, .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device vpif_dev = { + .name = "vpif", + .id = -1, + .dev = { + .dma_mask = &vpif_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), }, + .resource = vpif_resource, + .num_resources = ARRAY_SIZE(vpif_resource), +}; + +static struct resource vpif_display_resource[] = { { .start = IRQ_DM646X_VP_VERTINT2, .end = IRQ_DM646X_VP_VERTINT2, @@ -722,8 +736,32 @@ static struct platform_device vpif_display_dev = { .dma_mask = &vpif_dma_mask, .coherent_dma_mask = DMA_BIT_MASK(32), }, - .resource = vpif_resource, - .num_resources = ARRAY_SIZE(vpif_resource), + .resource = vpif_display_resource, + .num_resources = ARRAY_SIZE(vpif_display_resource), +}; + +static struct resource vpif_capture_resource[] = { + { + .start = IRQ_DM646X_VP_VERTINT0, + .end = IRQ_DM646X_VP_VERTINT0, + .flags = IORESOURCE_IRQ, + }, + { + .start = IRQ_DM646X_VP_VERTINT1, + .end = IRQ_DM646X_VP_VERTINT1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device vpif_capture_dev = { + .name = "vpif_capture", + .id = -1, + .dev = { + .dma_mask = &vpif_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = vpif_capture_resource, + .num_resources = ARRAY_SIZE(vpif_capture_resource), }; /*----------------------------------------------------------------------*/ @@ -854,7 +892,8 @@ void __init dm646x_init_mcasp1(struct snd_platform_data *pdata) platform_device_register(&dm646x_dit_device); } -void dm646x_setup_vpif(struct vpif_config *config) +void dm646x_setup_vpif(struct vpif_display_config *display_config, + struct vpif_capture_config *capture_config) { unsigned int value; void __iomem *base = IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE); @@ -872,8 +911,11 @@ void dm646x_setup_vpif(struct vpif_config *config) davinci_cfg_reg(DM646X_PTSOMUX_DISABLE); davinci_cfg_reg(DM646X_PTSIMUX_DISABLE); - vpif_display_dev.dev.platform_data = config; + vpif_display_dev.dev.platform_data = display_config; + vpif_capture_dev.dev.platform_data = capture_config; + platform_device_register(&vpif_dev); platform_device_register(&vpif_display_dev); + platform_device_register(&vpif_capture_dev); } void __init dm646x_init(void) diff --git a/arch/arm/mach-davinci/include/mach/dm646x.h b/arch/arm/mach-davinci/include/mach/dm646x.h index 792c226..8cec746 100644 --- a/arch/arm/mach-davinci/include/mach/dm646x.h +++ b/arch/arm/mach-davinci/include/mach/dm646x.h @@ -14,6 +14,8 @@ #include <mach/hardware.h> #include <mach/emac.h> #include <mach/asp.h> +#include <linux/i2c.h> +#include <linux/videodev2.h> #define DM646X_EMAC_BASE (0x01C80000) #define DM646X_EMAC_CNTRL_OFFSET (0x0000) @@ -31,26 +33,59 @@ void __init dm646x_init_mcasp1(struct snd_platform_data *pdata); void dm646x_video_init(void); -struct vpif_output { - u16 id; - const char *name; +enum vpif_if_type { + VPIF_IF_BT656, + VPIF_IF_BT1120, + VPIF_IF_RAW_BAYER +}; + +struct vpif_interface { + enum vpif_if_type if_type; + unsigned hd_pol:1; + unsigned vd_pol:1; + unsigned fid_pol:1; }; struct vpif_subdev_info { - unsigned short addr; const char *name; + struct i2c_board_info board_info; + u32 input; + u32 output; + unsigned can_route:1; + struct vpif_interface vpif_if; }; -struct vpif_config { +struct vpif_display_config { int (*set_clock)(int, int); - const struct vpif_subdev_info *subdevinfo; + struct vpif_subdev_info *subdevinfo; int subdev_count; const char **output; int output_count; const char *card_name; }; +struct vpif_input { + struct v4l2_input input; + const char *subdev_name; +}; + +#define VPIF_CAPTURE_MAX_CHANNELS 2 + +struct vpif_capture_chan_config { + const struct vpif_input *inputs; + int input_count; +}; + +struct vpif_capture_config { + int (*setup_input_channel_mode)(int); + int (*setup_input_path)(int, const char *); + struct vpif_capture_chan_config chan_config[VPIF_CAPTURE_MAX_CHANNELS]; + struct vpif_subdev_info *subdev_info; + int subdev_count; + const char *card_name; +}; -void dm646x_setup_vpif(struct vpif_config *config); +void dm646x_setup_vpif(struct vpif_display_config *, + struct vpif_capture_config *); #endif /* __ASM_ARCH_DM646X_H */

[v1,-,1/5] DaVinci - restructuring code to support vpif capture driver

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